Screen Saver Functions Reference

Overview

This chapter describes functions and function-like macros available in the Screen Saver framework.

Several of the functions produce random values. These make use of the C random number generator, random(), which the screen saver framework will automatically seed.

Functions by Task

Random Numbers

• SSRandomIntBetween
• SSRandomFloatBetween
• SSRandomPointForSizeWithinRect

Rectangles

• SSCenteredRectInRect

Functions

SSCenteredRectInRect

This function returns a rectangle.

static NSRect SSCenteredRectInRect (
   NSRect innerRect,
   NSRect outerRect
);

SSRandomFloatBetween

This function returns a random float value.

static float SSRandomFloatBetween (
   CGFloat a,
   CGFloat b
);

SSRandomIntBetween

This function returns a random integer value.

static int SSRandomIntBetween (
   int a,
   int b
);

SSRandomPointForSizeWithinRect

This function returns a random point.

static NSPoint SSRandomPointForSizeWithinRect (
   NSSize size,
   NSRect rect
);